When a file is uploaded, 5 more copies are created on different nodes around the world.

For a total of 6 copies.

5 copies. If by some chance those five do not the turn on their computer I won't be able access my files

We can detect when one of those contacts goes offline, and then we replicate from the existing pieces. Can see the raw data here: https://api.storj.io/contacts Is paginated so you can see the next here https://api.storj.io/contacts?page=2 and so on.